30747648 has 44 divisors (see below), whose sum is σ = 81961880. Its totient is φ = 10248192.

The previous prime is 30747641. The next prime is 30747671. The reversal of 30747648 is 84674703.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30747641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933 + ... + 8076.

It is an arithmetic number, because the mean of its divisors is an integer number (1862770).

Almost surely, 2^30747648 is an apocalyptic number.

It is an amenable number.

30747648 is an abundant number, since it is smaller than the sum of its proper divisors (51214232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30747648 is a wasteful number, since it uses less digits than its factorization.

30747648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10032 (or 10014 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 30747648 is about 5545.0561764512. The cubic root of 30747648 is about 313.2833399439.

The spelling of 30747648 in words is "thirty million, seven hundred forty-seven thousand, six hundred forty-eight".